/* internal.h -- Internal header file for stack backtrace library.
- Copyright (C) 2012-2016 Free Software Foundation, Inc.
+ Copyright (C) 2012-2020 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Google.
Redistribution and use in source and binary forms, with or without
met:
(1) Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
+ notice, this list of conditions and the following disclaimer.
(2) Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
- distribution.
-
+ distribution.
+
(3) The name of the author may not be used to
endorse or promote products derived from this software without
specific prior written permission.
# endif
#endif
+#ifndef ATTRIBUTE_FALLTHROUGH
+# if (GCC_VERSION >= 7000)
+# define ATTRIBUTE_FALLTHROUGH __attribute__ ((__fallthrough__))
+# else
+# define ATTRIBUTE_FALLTHROUGH
+# endif
+#endif
+
#ifndef HAVE_SYNC_FUNCTIONS
/* Define out the sync functions. These should never be called if
/* Create a view of SIZE bytes from DESCRIPTOR at OFFSET. Store the
result in *VIEW. Returns 1 on success, 0 on error. */
extern int backtrace_get_view (struct backtrace_state *state, int descriptor,
- off_t offset, size_t size,
+ off_t offset, uint64_t size,
backtrace_error_callback error_callback,
void *data, struct backtrace_view *view);
backtrace_error_callback error_callback,
void *data);
+/* Free the space managed by VEC. This will reset VEC. */
+
+static inline void
+backtrace_vector_free (struct backtrace_state *state,
+ struct backtrace_vector *vec,
+ backtrace_error_callback error_callback, void *data)
+{
+ vec->alc += vec->size;
+ vec->size = 0;
+ backtrace_vector_release (state, vec, error_callback, data);
+}
+
/* Read initial debug data from a descriptor, and set the
fileline_data, syminfo_fn, and syminfo_data fields of STATE.
Return the fileln_fn field in *FILELN_FN--this is done this way so
appropriate one. */
extern int backtrace_initialize (struct backtrace_state *state,
+ const char *filename,
int descriptor,
backtrace_error_callback error_callback,
void *data,
fileline *fileline_fn);
+/* An enum for the DWARF sections we care about. */
+
+enum dwarf_section
+{
+ DEBUG_INFO,
+ DEBUG_LINE,
+ DEBUG_ABBREV,
+ DEBUG_RANGES,
+ DEBUG_STR,
+ DEBUG_ADDR,
+ DEBUG_STR_OFFSETS,
+ DEBUG_LINE_STR,
+ DEBUG_RNGLISTS,
+
+ DEBUG_MAX
+};
+
+/* Data for the DWARF sections we care about. */
+
+struct dwarf_sections
+{
+ const unsigned char *data[DEBUG_MAX];
+ size_t size[DEBUG_MAX];
+};
+
+/* DWARF data read from a file, used for .gnu_debugaltlink. */
+
+struct dwarf_data;
+
/* Add file/line information for a DWARF module. */
extern int backtrace_dwarf_add (struct backtrace_state *state,
uintptr_t base_address,
- const unsigned char* dwarf_info,
- size_t dwarf_info_size,
- const unsigned char *dwarf_line,
- size_t dwarf_line_size,
- const unsigned char *dwarf_abbrev,
- size_t dwarf_abbrev_size,
- const unsigned char *dwarf_ranges,
- size_t dwarf_range_size,
- const unsigned char *dwarf_str,
- size_t dwarf_str_size,
+ const struct dwarf_sections *dwarf_sections,
int is_bigendian,
+ struct dwarf_data *fileline_altlink,
backtrace_error_callback error_callback,
- void *data, fileline *fileline_fn);
+ void *data, fileline *fileline_fn,
+ struct dwarf_data **fileline_entry);
+
+/* A data structure to pass to backtrace_syminfo_to_full. */
+
+struct backtrace_call_full
+{
+ backtrace_full_callback full_callback;
+ backtrace_error_callback full_error_callback;
+ void *full_data;
+ int ret;
+};
+
+/* A backtrace_syminfo_callback that can call into a
+ backtrace_full_callback, used when we have a symbol table but no
+ debug info. */
+
+extern void backtrace_syminfo_to_full_callback (void *data, uintptr_t pc,
+ const char *symname,
+ uintptr_t symval,
+ uintptr_t symsize);
+
+/* An error callback that corresponds to
+ backtrace_syminfo_to_full_callback. */
+
+extern void backtrace_syminfo_to_full_error_callback (void *, const char *,
+ int);
+
+/* A test-only hook for elf_uncompress_zdebug. */
+
+extern int backtrace_uncompress_zdebug (struct backtrace_state *,
+ const unsigned char *compressed,
+ size_t compressed_size,
+ backtrace_error_callback, void *data,
+ unsigned char **uncompressed,
+ size_t *uncompressed_size);
+
+/* A test-only hook for elf_uncompress_lzma. */
+
+extern int backtrace_uncompress_lzma (struct backtrace_state *,
+ const unsigned char *compressed,
+ size_t compressed_size,
+ backtrace_error_callback, void *data,
+ unsigned char **uncompressed,
+ size_t *uncompressed_size);
#endif
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